Add Chimera combined-cycle ramjet (#2988)

GameData/RealismOverhaul/Engine_Configs/Jet_Engine_Configs/Chimera_Config.cfg

@@ -0,0 +1,188 @@
+//	==================================================
+//	Engine: Chimera
+//
+//	Manufacturer: Hermeus & GE
+//
+//	=================================================================================
+//	J85-GE-21
+//	1972, F-5E/F
+//	Engine core consists of J85s from retired F-5Es
+//
+//	Dry Mass: 480 kg		//guess, ramjet+precooler
+//	Thrust (Dry): 16.0 kN
+//	Thrust (Wet): 24.4 kN	//afterburner replaced with combined cycle ramjet. More thrust augmentation than stock afterburner?
+//	SFC (Dry): 1.24 lb/lbf-hr
+//	Area: 0.085 m^2	//Compressor Area
+//	BPR: 0.0		//Bypass Ratio
+//	CPR: 8.1		//Compressor Pressure Ratio
+//	FPR: 0.0		//Fan Ratio
+//	Mdes: 0.9 M		//Mach Design Point
+//	Tdes: 250 K		//Temp Design Point
+//	eta_n: 0.9		//Efficiency at afterburner rear / nozzle entrance
+//	FHV: 28000000 J		//Fuel heat of burning
+//	TIT: 1300 K		//Combustion peak temp
+//	TAB: 1927* K	//Afterburner peak temp
+//	maxT3: 865 K	//Turbine max temperature	some precooling to push J85 core to M3
+//	Exhaust Mixer: false
+//	Adjustable Nozzle: true
+//	=================================================================================
+//	Chimera
+//	2022
+//	Envelope M3 to M5 (@ altitude?). Mostly copied from XRJ59
+//
+//	Dry Mass: N/A kg
+//	Thrust: 36.6 kN		//guess
+//	Area: 0.125 m^2		//Compressor Area
+//	Mdes: 4.0 M			//Mach Design Point
+//	Tdes: 225 K			//Temp Design Point
+//	eta_n: 0.98			//Efficiency at afterburner rear / nozzle entrance
+//	FHV: 32400000 J		//Fuel heat of burning
+//	maxFar: 0.07		//Max fuel to air ratio
+//	maxEngineTemp: 4370 K	//Engine max temperature
+//	=================================================================================
+
+//	Sources:
+
+//	https://www.hermeus.com/chimera
+//	https://www.hermeus.com/press-release-tbcc-milestone
+//	https://www.jet-engine.net/miltfspec.htm
+
+
+//	Used by:
+
+//	Notes:
+
+//	Run on test stand, but never flown? Quarterhorse demonstrators appear to use normal J85s, with
+//	F100-based design intended for full-scale model.
+//	==================================================
+@PART[*]:HAS[#engineType[Chimera]]:FOR[RealismOverhaulEngines]
+{
+
+	%title = #roChimeraTitle	//Chimera Combined Cycle Ramjet
+	%manufacturer = #roMfrHermeus
+	%description = #roChimeraDesc
+
+	@tags ^= :$: usa hermeus ge general electric j85 chimera ramjet turbojet
+
+	%specLevel = prototype	//operational, prototype, concept, speculative, altHist, sciFi
+
+	!MODULE[ModuleEngines*],*{}
+
+	MODULE
+	{
+		name = ModuleEnginesAJEJet
+		EngineType = Turbine
+		thrustVectorTransformName = thrustTransform
+		engineID = MainEngine
+	}
+	MODULE
+	{
+		name = ModuleEnginesAJERamjet
+		EngineType = Turbine
+		thrustVectorTransformName = thrustTransform
+		engineID = BackupEngine
+	}
+
+	@MODULE[ModuleAlternator]
+	{
+		@RESOURCE[ElectricCharge]
+		{
+			%rate = 50.0
+		}
+	}
+	!MODULE[ModuleGimbal]{}
+
+	MODULE
+	{
+		name = ModuleEngineConfigs
+		type = ModuleEnginesAJEJet
+		configuration = J85-GE-21-Chimera
+		engineID = MainEngine
+		isMaster = True
+		origMass = 0.480
+
+		CONFIG
+		{
+			name = J85-GE-21-Chimera
+			description = Temperature Mach limit at 15 km: 3.16.
+			specLevel = prototype
+			massMult = 1.00
+			heatProduction = 10
+
+			Area = 0.085		//Compressor Area
+			BPR = 0.0		//Bypass Ratio
+			CPR = 8.1		//Compressor Pressure Ratio
+			FPR = 0.0		//Fan Ratio
+			Mdes = 0.9		//Mach Design Point
+			Tdes = 250		//Temp Design Point
+			eta_c = 0.95	//Efficiency at burner inlet
+			eta_t = 0.98	//Efficiency at burner exit
+			eta_n = 0.9		//Efficiency at afterburner rear / nozzle entrance
+			FHV = 28000000	//Fuel heat of burning (joules?)
+			TIT = 1300		//Combustion peak temp
+			TAB = 2498		//Afterburner temp?
+			maxT3 = 865		//Turbine max temperature
+			exhaustMixer = False
+			adjustableNozzle = True
+			thrustUpperLimit = 50
+
+			// Engine fitting params
+			defaultTPR = 0.85
+			dryThrust = 16
+			wetThrust = 24.4
+			maxThrust = 24.4	//Just to let MEC know thrust
+			drySFC = 1.24
+			throttleResponseMultiplier = 0.6	//70s single-spool, 0.6
+
+			PROPELLANT
+			{
+				name = Kerosene
+				ratio = 1.0
+				DrawGauge = True
+			}
+
+			OtherModules
+			{
+				BackupEngine = Chimera
+			}
+		}
+	}
+
+	MODULE
+	{
+		name = ModuleEngineConfigs
+		type = ModuleEnginesAJERamjet
+		configuration = Chimera
+		engineID = BackupEngine
+		isMaster = False
+
+		CONFIG
+		{
+			name = Chimera
+			//description = 
+			specLevel = prototype
+			massMult = 1.00
+			heatProduction = 10
+
+			Area = 0.125		//Compressor Area
+			Mdes = 4.00		//Mach Design Point
+			Tdes = 225		//Temp Design Point
+			eta_n = 0.98		//Efficiency at afterburner rear / nozzle entrance
+			FHV = 32400000	//Fuel heat of burning (joules?)
+			maxFar = 0.10
+			maxEngineTemp = 4370
+			thrustUpperLimit = 45
+
+			// Engine fitting params
+			maxThrust = 45	//Just to let MEC know thrust
+			throttleResponseMultiplier = 1.0
+
+			PROPELLANT
+			{
+				name = Kerosene
+				ratio = 1.0
+				DrawGauge = True
+			}
+		}
+	}
+}

GameData/RealismOverhaul/Localization/en-us-Engines.cfg

@@ -1070,6 +1070,9 @@ Localization
 		//		CFM56
 		#roCFM56Title = CFM56 High-Bypass Turbofan
 		#roCFM56Desc = The CFM56 is a 1970s high-bypass turbofan, developed from the F101. Created in a collaboration between GE and Snecma, the CFM56 is the most successful high-bypass turbofan ever made, with over 30,000 built. It powered the Airbus A320 and A340 series, B737 Classic and Next Gen series, DC-8-70, and was used to re-engine many 707-based aircraft such as the E-3, E-6, and KC/RC-135.
+		//		Chimera
+		#roChimeraTitle = Chimera Combined Cycle Ramjet
+		#roChimeraDesc = The Chimera is a combined cycle ramjet tech demonstrator built by Hermeus. Based around retired J85 cores, it is intended to operate over a flight envelope from Mach 0 to Mach 5.
 		//		D-18
 		#roD18Title = D-18 High-Bypass Turbofan
 		#roD18Desc = The D-18 was the largest high-bypass turbofan developed in the Soviet Union, created in the 1980s for the An-124 and An-225.

GameData/RealismOverhaul/Localization/en-us-Mfr.cfg

@@ -50,6 +50,7 @@ Localization
 		#roMfrGrumman = Grumman Aerospace	//(1929-1994) merged with Northrop to form Northrop Grumman in 1994
 		//H
 		#roMfrHercules = Hercules	//(1912-2008) sold to Ashland in 2008
+		#roMfrHermeus = Hermeus		//(2018-present)
 		#roMfrHoneywell = Honeywell	//(1906-1999) merged with Allied Signal to form Honeywell International in 1999. Spun off ATK in 1990
 		#roMfrHughes = Hughes Aircraft	//(1934-1997) sold to Raytheon in 1997
 		//I